| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 401 | Ramakant Subedar Jagir | Paina BO | 📍 852213 | Chausa | Branch Post Office |
| 402 | Ramnagar Mahesh | Ramnagar BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 403 | Ramnagar Mahesh Chakla | Ramnagar BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 404 | Rampatti | Ranipatti BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 405 | Rampatti | Rampatti BO | 📍 852114 | Singheshwar | Branch Post Office |
| 406 | Rampur | Rampur BO | 📍 852122 | Murliganj | Branch Post Office |
| 407 | Rampur | Singheshwar SO | 📍 852128 | Singheshwar | Post Office - PO |
| 408 | Rampur Dehru | Rampur Khora BO | 📍 852220 | Kishanganj | Branch Post Office |
| 409 | Rampur Khora | Rampur Khora BO | 📍 852220 | Kishanganj | Branch Post Office |
| 410 | Ramsahai Milik alias Garibjha | Gwalpara SO | 📍 852115 | Kishanganj | Post Office - PO |
| 411 | Ramsahai Milik Garibjha Chakla | Gwalpara SO | 📍 852115 | Kishanganj | Post Office - PO |
| 412 | Rani Patti | Ranipatti BO | 📍 852112 | Murliganj | Branch Post Office |
| 413 | Raota | Puraini Bazar SO | 📍 852116 | Puraini | Post Office - PO |
| 414 | Rasna | Bishanpurarar BO | 📍 852115 | Gwalpara | Branch Post Office |
| 415 | Rasulpur Dhuria | D.Kalan BO | 📍 852213 | Chausa | Branch Post Office |
| 416 | Rasulpur Qasim urf Murlichandw | Murli Chandwa BO | 📍 852220 | Kishanganj | Branch Post Office |
| 417 | Ratanpura | Ratanpura BO | 📍 852128 | Ghailarh | Branch Post Office |
| 418 | Roshan Ali Milik | D.Kalan BO | 📍 852213 | Kishanganj | Branch Post Office |
| 419 | Ruhua urf Harpur Hingo | Rahua BO | 📍 852116 | Kishanganj | Branch Post Office |
| 420 | Rupauli Part in Gamharia * | Rupauli Jiwachpur BO | 📍 852128 | Singheshwar | Branch Post Office |
| 421 | Rupauli Part in Singheshwar * | Rupauli Lalpatti BO | 📍 852128 | Gamharia | Branch Post Office |
| 422 | Sahebganj Itahari | H.Kala BO | 📍 852122 | Murliganj | Branch Post Office |
| 423 | Sahoriabala | Sahuria BO | 📍 852122 | Kumarkhand | Branch Post Office |
| 424 | Sahugarh | Sahugarh BO | 📍 852113 | Madhepura | Branch Post Office |
| 425 | Sakhua | Pokhram BO | 📍 852114 | Murliganj | Branch Post Office |
| 426 | Sanoti Chak | Phulaut BO | 📍 852219 | Alamnagar | Branch Post Office |
| 427 | Saparda | Sapardah BO | 📍 852219 | Puraini | Branch Post Office |
| 428 | Sarauni Kalan | Sarauni Kala BO | 📍 852101 | Gwalpara | Branch Post Office |
| 429 | Sardar Khan Sipahi Jagir | Laua Lagam BO | 📍 852213 | Chausa | Branch Post Office |
| 430 | Sarhad | Puraini BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 431 | Sarhadgatti | Puraini BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 432 | Sarhadgatti alias chakla kalan | Puraini BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 433 | Sarhadgatti alias kalan sardar | Puraini BO | 📍 852112 | Kumarkhand | Branch Post Office |
| 434 | Saropatti | Lalpur Sarropatti BO | 📍 852128 | Singheshwar | Branch Post Office |
| 435 | Shahidpur | Udakishunganj SO | 📍 852220 | Kishanganj | Post Office - PO |
| 436 | Shahpur Chaumukh | Shahpur BO | 📍 852115 | Gwalpara | Branch Post Office |
| 437 | Shakarpur | Sakarpura BO | 📍 852113 | Madhepura | Branch Post Office |
| 438 | Shankarpur | Shankarpur BO | 📍 852132 | Shankarpur | Branch Post Office |
| 439 | Shankarpur Madhaili | S.Madheli BO | 📍 852219 | Alamnagar | Branch Post Office |
| 440 | Shekhpur Chaman | Sahjadpur BO | 📍 852219 | Kishanganj | Branch Post Office |
| 441 | Shekhpura | Kathotia BO | 📍 852101 | Bihariganj | Branch Post Office |
| 442 | shyam | Udakishunganj SO | 📍 852220 | Gwalpara | Post Office - PO |
| 443 | Sihpur | Kumarkhand SO | 📍 852112 | Kumarkhand | Post Office - PO |
| 444 | Sihpur Chakla | Kumarkhand SO | 📍 852112 | Kumarkhand | Post Office - PO |
| 445 | Sikrahti | Kumarkhand SO | 📍 852112 | Kumarkhand | Post Office - PO |
| 446 | Sikrahti Milik | Kumarkhand SO | 📍 852112 | Kumarkhand | Post Office - PO |
| 447 | Sindwari | Shahpur BO | 📍 852115 | Gwalpara | Branch Post Office |
| 448 | Singarpur | Mahua Bazar BO | 📍 852219 | Kishanganj | Branch Post Office |
| 449 | Singhar | Singhar BO | 📍 852219 | Alamnagar | Branch Post Office |
| 450 | Singhesar Asthan | Singheshwar SO | 📍 852128 | Singheshwar | Post Office - PO |